Senior Identity Engineer · AI for regulated systems · ½ machine
I build identity and trust systems, and now the AI inside them
Twelve years across digital identity, compliant crypto, medical and IoT. These days a lot of that is putting AI into products where a wrong answer has consequences. Sometimes the engineer, sometimes the founder.
Start a project About me →RoleSenior Identity Engineer @ TWIN (IOTA Foundation)
StackTypeScript · Rust · Move · Solidity
FocusRegulated AI · OID4VP · SD-JWT VC · EU AI Act
01
Latest writing
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10 Jul 2026
claude-plugins: Domain Experts You Can Install
#claude-code -
09 Jul 2026
Chat Control 1.0 Is Back: What It Means for You
#privacy -
08 Jul 2026
tku: Run Claude as Another Account, Just Once
#tku -
05 Jul 2026
Still at it: PantherX, four years on
#guix -
04 Jul 2026
Stackpit: a Tiny Self-Hosted Sentry
#rust
02
Work with me
I take on a few outside engagements a year: identity and systems work, or AI where a wrong answer has consequences.
Identity & systemsDigital identity, verifiable credentials, KYC, and the backend around them. TypeScript and Rust, architecture to production.start a conversation →
AI buildAI that fits your stack. EU-resident or self-hosted, compliance as an output, not a chatbot bolted on the side./work-with-me →
AI security reviewFind out whether the AI you already shipped leaks. Prompt injection, RAG leaks, agent abuse: the things a normal pentest misses./work-with-me →
03
What I build
SaaS · hosted
GPTMusePrivacy-first AI platform with access to ChatGPT, Claude, Gemini, Grok and others. Pay-per-use pricing.gpt-muse.com →
FormshiveEmbed and process forms from your website; Pay as you go or self-host from €590/year.formshive.com →
CheckoutbayE-Commerce platform for SMEs and individuals; Pay as you go or self-host from €790/year.checkoutbay.com →
Self-hosted · open source
StackpitSelf-hosted, Sentry-compatible error tracking. Single binary, single SQLite file, no external dependencies. MIT./software/stackpit →
ForsetiSelf-service UI & OAuth2 login / consent bridge for Ory Kratos + Hydra. Server-rendered in Rust. AGPL-3.0./software/forseti →
Desktop apps & libraries
guix-rsDesktop GUI for GNU Guix — search, install, upgrade and reconfigure, no terminal. Built in Rust on Iced; ships the libguix crate. GPL-3.0./software/guix-rs →
iced_webviewEmbed web views in iced apps — pick a rendering engine (litehtml, Blitz, Servo or CEF), drop a widget in your view. A Rust library. Apache-2.0./software/iced-webview →
See allEvery app, library, CLI and tool I've shipped — including the smaller Rust crates that don't get a page of their own./software · 19 projects →
04
Around the world
Where I've worked
Born in East Germany; at home between Europe, the Middle East and Southeast Asia. The pins are projects and places.
↳ live map · glowing pins05